Egbert patterson



. PATTERSON.

STEAM GENERATOR.

No, 105,243. Patented July 12, 1870.

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Letters Patent N0.'105,243, dated July 12, 187 O.

STEAM-GENERATOR.

The Schedule referred to in these Letters Patent and making parent the same,

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To all whom it may concern Be it known that I, ROBERT PATTERSON, of flatskill, in the county of Greene and State of New York, have invented a new and useful Improvement in Steam-Generator; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being bad to the accompanying drawing forming part of this specification.

This invention relates to a new and improved method of generating steam, and consists in an apparatus whereby heat is transmitted to the water by means of steam, and not by bringing the water in contact with fire-surface metallic plates, and in the use of an absorbent generating and condensing medium, as hereinafter more fully described.

In the accompanying drawing- Figure 1 represents a horizontal section of the gen, orator through the line x :v of fig. 2.

Figure 2 is a vertical section of .fig. 1 through the line 3 y. V

Figure 3 is a vertical cross-section of fig. 1, through the line z z.

Similar letters of reference indicate corresponding parts.

A is a casing or shell in which the generators are placed, and which forms the combustion-chamber of the furnace or fire-box.

B represents the furnace, beneath the grate-bars of which there is an ash-pit, G.

I) represents the generators, one or more of which may be used. 7

I) is the chimney or smoke-stack.

E is the water-tank.

The generators are numbered in order, as Nos. 1, 2, and 3.

No. 1 consists of the surrounding cylinder F, and also an internal cylinder, formed of wire-gauze or metal, but preferably of the former.

This smaller cylinder surrounds a pipe, I, connecting with the water-chamber E F, and is filled with charcoal or other absorbent.

The water is forced up by a pump, I, through the pipe P, and flows over, through perforated caps B,

into the absorbent, through which it percolates'until converted into steam.

Any portion thereof not vaporized passes down through outlet-apertures N intoa water-duct or channel F, which conveys it away into some suitablereceptaele.

The steam thus generated passes through the reticulated cylinder into the chamber next to the fire- '-surfi1ce,. and thence through pipe H to the annular chamber L of No. 2.

Here, rising to the top and cooler part of the generator, it mixes with the water rising through the pipe I, loosesa portion of its latent heat, and is then condensed.

The water, having its quantitythus increased, and its temperature thus elevated, passes down through the absorbent, and is again, but much sooner than before, converted into steam. Itthen passes through pipe H to chamber L of No. 3 in a somewhat superheated state; here, again, it ascends, isagaiucon- ,densed, and passes down into the absorbent.

The percolating liquid thus formed is, however, still nearer to the condition of steam, and is still more readily converted into the same.

In consequence, when-the steam leaves the last generator for the reservoir it is alreadyat a high temperature, and, by exposure therein, may be readily superheated to the desired extent.

It will be,pereeived by the drawing that generators Nos. 2 and 3 are provided with auxiliary steamchambers, communicating with, or which may, per haps, be considered as a part of the cylinders K. I

O O are apertures in the cylinders K, through which the steam escapes into these auxiliary chambers.

The'mode of operation is as follows:

The heat products being transmitted from the furnace into the combustion-chamber A, are absorbed by the cylinders D, and radiated into the chambers L,

whence they are received by the absorbent and gener ating chambers.-

The water, being forced up by the pump through small pipes of suitable diameter, is received into the perforated concave caps, which distribute it in atten uated streams through the absorbent. Here, percolating through the heated absorbent, it is converted into steam.

The same operation is, repeated successively-in all the cylinders, and the surplus water, not converted, passes into the water-reservoir, diffusing its heat therein.

It will thus be perceived that the entire heat product is utilized, and the greatest possible economy in the production of steam attained.

Having thus described all that is necessary toa clear understanding of my invention,

What I esteem to be new, and desire to protect by Letters Patent, is-

1. Two or more successive steamgenerators D, combined and arranged in the combustion-chamber A of a furnace, as and for the purpose described.

2. A steam-generator, D, formed of two cylindrical vessels, placed one within the other, so as to leave an annular chamber between. them for thecirculation of heat, and having a central chamber filled with charcoal or other absorbent, to hold the water while being vaporized, all as shown and described.

3. The combination with a, furnace and combustion-chamber A B of two or more generators, ID, reservoir G, water-chambers E F, and outlet-channel F, all'constrncted and connected as described,

to successively generate, supel'heat, condense, and deliver the steam to a. reservoir, in the manner set;

Geo. W. MABEE, ALEX. F. ROBERTS. 

